So we just went on our first week long camping trip with the family to a new camping "resort" in the area. Loved it, the place was magnificent! We packed our travel trailer full of food and snacks...
For us it depends on the trip. Usually we have meals but don't designate a day to eat it. That gives us some flexibility. On busy days we cook something fast or reheat something we cooked at home, and hang out by the fire. On less busy days where we hang out by the campsite we usually will do something elaborate. If a restaraunt catches our eye we may eat out as a treat, but we rarely plan on eating out.